Relevant bibliographies by topics / Multi-element system / Dissertations / Theses
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Dissertations / Theses on the topic 'Multi-element system'

Author: Grafiati
Published: 28 May 2022
Last updated: 18 July 2025

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1

Vernickel, Peter. "A multi-element transmit system for MRI." Berlin Köster, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=3000504&prov=M&dok_var=1&dok_ext=htm.

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2

Lee, Rena J. "Design and experimental evaluation of a multi-element and multi-catheter ultrasound system for interstitial hyperthermia." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/9826.

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3

Prempraneerach, Pradya 1975. "Uncertainty analysis in a shipboard integrated power system using multi-element polynomial chaos." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40364.

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Thesis (Ph. D. in Ocean Engineering)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.<br>Errata, dated Oct. 30, 2007, inserted between pages 3 and 4 of text.<br>Includes bibliographical references (p. 301-307).<br>The integrated power system has become increasingly important in electric ships due to the integrated capability of high-power equipment, for example, electromagnetic rail guns, advance radar system, etc. Several parameters of the shipboard power system are uncertain, caused by a measurement difficulty, a temperature dependency, and random fluctuation of
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4

Choy, Faith. "Performance investigation of multi-element antenna terminals for personal communications : TDMA LEOS system applications /." [St. Lucia, Qld.], 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16140.pdf.

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5

Fu, Dianbo. "Topology Investigation and System Optimization of Resonant Converters." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/27783.

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Over the past several years, energy efficiency and power density have become the top concerns for power conversion. Rising energy intensity leads to a higher cost of delivering power. Meanwhile, the demand for compact power supplies grows significantly. It requires power supplies with high efficiency, low profile and high power density. Dc-dc power conversion has been widely applied for industry, medial, military and airspace applications. Conventional PWM dc-dc converters have relatively low power transfer efficiency and low power density. In contrast, resonant dc-dc converters have numerous
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6

Deserranno, Dimitri. "A Multi-Scale Finite Element Model of the Cardiac Ventricles." Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1148984314.

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7

Šárovec, Marek. "Uložení rotorů turbodmychadel na valivých ložiscích." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318741.

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The main purpose of this diploma thesis is to design turbocharger rotor using rolling element bearings. The diploma thesis is compiled from two specialized search parts dealing with turbocharger rotor and rolling element bearing computation, respectively. The application of the particular rotor using the multi body system Adams – View is described in the following chapter. In the last chapter, one can find the comparison between rotor using bearing with steal and hybrid ceramic rolling element. Also, there is compariosn between rolling element bearing and journal bearing. In the maximum rotor
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Webster, Keith Gordon. "Investigation of Close Proximity Underwater Explosion Effects on a Ship-Like Structure Using the Multi-Material Arbitrary Lagrangian Eulerian Finite Element Method." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/31077.

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This thesis investigates the characteristics of a close proximity underwater explosion and its effect on a ship-like structure. Finite element model tests are conducted to verify and validate the propagation of a pressure wave generated by an underwater explosion through a fluid medium, and the transmission of the pressure wave in the fluid to a structure using the Multi-Material Arbitrary Lagrangian/Eulerian method. A one dimensional case modeling the detonation of a spherical TNT charge underwater is investigated. Three dimensional cases modeling the detonation of an underwater spherical
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Marzec, Cindy, and Joachim Gustavsson. "VALUE STREAM MAPPING – A CASE STUDY OF CONSTRUCTION SUPPLY CHAINOF PREFABRICATED MASSIVE TIMBER FLOOR ELEMENT." Thesis, Växjö University, School of Management and Economics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-1606.

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<p>The purpose of this Master Thesis is to study how the value stream mapping concept can be applied along the construction supply chain for prefabricated massive timber floor elements. Identification and qualification of waste are starting points to propose suggestions on how to reduce and/or eliminate them. In order to use the value stream mapping along the construction supply chain, pertinent data has been collected and analyzed. To conduct the value stream mapping, the first three steps of the lean thinking principles in construction have been followed. The first step aims at defining the
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Andreev, A. A., V. N. Voevodin, O. V. Sobol, et al. "Effect of Ion Irradiation on the Structural State of the Vacuum-Arc Nitride Coatings." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35134.

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The effect of irradiation with ions Ar+ (energy of 1 MeV and 1.8 MeV) and He (energy of 0.6 MeV) on the structure and mechanical properties of the vacuum-arc nitride coatings. It is shown that the level of exposure to radiation materials can be divided into 3 classes: a) “the most persistent” - significant changes occur only on the substructure level (as an example - multi-element system Ti-Zr-V-Hf-Nb-Ta-N), b) “the medium resistance “- significant changes occur in the macro stress-strained state (as an example - the system Ti-N), c) “structural variable” – significant changes in the mac
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11

Sheer, Francis Joseph. "Multi-Scale Computational Modeling of Fluid-Structure Interactions and Adhesion Dynamics in the Upper Respiratory System." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1316287639.

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12

Al-ou'n, Ashraf M. S. "VM Allocation in Cloud Datacenters Based on the Multi-Agent System. An Investigation into the Design and Response Time Analysis of a Multi-Agent-based Virtual Machine (VM) Allocation/Placement Policy in Cloud Datacenters." Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/16067.

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Recent years have witnessed a surge in demand for infrastructure and services to cover high demands on processing big chunks of data and applications resulting in a mega Cloud Datacenter. A datacenter is of high complexity with increasing difficulties to identify, allocate efficiently and fast an appropriate host for the requested virtual machine (VM). Establishing a good awareness of all datacenter’s resources enables the allocation “placement” policies to make the best decision in reducing the time that is needed to allocate and create the VM(s) at the appropriate host(s). However, current a
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13

FAROKHI, NEJAD ALI. "MultiBody Dynamic Analysis of a 3D Synchronizer Model." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2730618.

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14

Fisher, Matthew Jackson. "Parametric Optimization Design System for a Fluid Domain Assembly." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2373.pdf.

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15

Dlugoš, Jozef. "Výpočtové modelování dynamiky pístního kroužku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231299.

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Piston rings are installed in the piston and cylinder wall, which does not have a perfect round shape due to machining tolerances or external loads e.g. head bolts tightening. If the ring cannot follow these deformations, a localized lack of contact will occur and consequently an increase in the engine blow-by and lubricant oil consumption. Current 2D computational methods can not implement such effects – more complex model is necessary. The presented master’s thesis is focused on the developement of a flexible 3D piston ring model able to capture local deformations. It is based on the Timoshe
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16

Mammasis, Konstantinos. "Spherical statistics in multi-element antenna systems." Thesis, University of Strathclyde, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510847.

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17

Miri, Amin. "Mitigating severity of longitudinal interaction of rail-track-bridge system in transition zones for safer trains." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/236242/1/Amin%2BMiri%2BThesis%282%29.pdf.

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Extreme heat and temperature fluctuation in Queensland result in buckling of railway tracks which jeopardize the safety of train operation and cost huge sums to repair. This thesis carried out an elaborate investigation on the issue of track buckling and provided several approaches to mitigate the risks of track buckling to enable safer trains and lower maintenance costs for railway operators in Australia.
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Kreißl, Stefan [Verfasser], and Gregor [Akademischer Betreuer] Markl. "Influence of the Alpine Orogeny on Siderite-hosted Five-Element Veins : Reconstruction of a 240 to 6 Ma Multi-Stage Bi-Co-Ni-Fe-As-S-(U) System in the Penninic Alps, Switzerland / Stefan Kreißl ; Betreuer: Gregor Markl." Tübingen : Universitätsbibliothek Tübingen, 2018. http://d-nb.info/1198973919/34.

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19

Bauer, Zachary Obenour. "A Calibration Method for a Controlled Reception Pattern Antenna and Software Defined Radio Configuration." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1357402542.

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20

Ben, Hamdin Hanya Abdusalam Mohamed. "Boundary element and transfer operator methods for multi-component wave systems." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/12446/.

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In this thesis, exact and semiclassical approaches are derived for predicting wave energy distributions in coupled cavities with variable material properties. These approaches are attractive because they can be extended to more complex built-up systems. For the exact treatment, we describe a multi-component boundary element method. We point out that depending on the boundary conditions and the number of interfaces between sub-components, it may be advantageous to use a normal derivative method to set up the integral kernels. We describe how the arising hypersingular integral kernels can be red
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21

Al, Anqah Laila. "Trace element contaminants in the Kuwait water production system." Thesis, Brunel University, 1996. http://bura.brunel.ac.uk/handle/2438/5012.

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Fresh water in Kuwait is produced by non- conventional methods. About 95% of this water comes from desalinated seawater using multi-stage flash distillation technique and the remainder comes from underground brackish water. The blended water containes organic, inorganic and trace metal impurities within the recommended international standard limits. The purpose of this work is to identify the source of selected trace metals present in the drinking water in Kuwait. Chromium, copper, iron, lead, manganese, nickel, vanadium and zinc have been analysed using atomic absorption spectroscopy (AAS) an
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22

Urban, Jiří. "Rám přívěsu Pillar pro přepravu betonových sloupů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229239.

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The aim of this thesis is an analysis of the construction of a trailer used for transporting concrete pillars. The main part of the thesis is focused on frame construction. For the calculation of load states a multi body system was used, whereby a simulation of transport in terrain was performed. The results from these calculations will be used as limiting conditions for strength control. The method of solution is the finite element method. All acquired results will be analysed and according to them changes will be made to the frame construction. In addition to this, the thesis contains drawin
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23

El, Didy Sherif Mohamed Ahmed 1951. "Two-dimensional finite element programs for water flow and water quality in multi-aquifer systems." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/191110.

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Multiple aquifer systems similar to those that exist at coal gasification sites are complicated groundwater situations. In these types of systems, the aquifers are separated by aquitards through which interaction between aquifers can occur. The movement of the products of combustion into the coal seam and adjacent aquifers is a serious problem of interest. This dissertation presents two-dimensional finite element models for water flow and water quality in multiple aquifer systems. These models can be applied for general problems as well as the problems associated with the burned cavities in co
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24

Corradi, Grégoire. "Approches numérique et expérimentale pour des structures à interfaces frottantes : Application au crissement de frein." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEC044.

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Les systèmes de freins sont parfois sujets au crissement qui sont des vibrations auto-entretenues induites par le frottement et caractérisées par un contenu fréquentiel formé de raies à hautes fréquences supérieures à 1kHz. Ces vibrations et bruits intenses sont une source de gêne pour les usagers automobile, un problème de santé publique pour les riverains de gares lors du freinage de TGV et peuvent amener à l'endommagement du train d'atterrissage sur les avions.Afin de comprendre ce phénomène et pour le reproduire numériquement, une stratégie complète d'étude est développée. Elle se base sur
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25

Posselt, Adrian [Verfasser]. "Design and analysis of multi-element antenna systems and agile radiofrequency frontends for automotive applications / Adrian Posselt." Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2019. http://d-nb.info/1192440528/34.

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26

Hill, Jeremy Lee. "Mechanical property determination for flexible material systems." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54993.

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Inflatable Aerodynamic Decelerators (IADs) are a candidate technology NASA began investigating in the late 1960’s. Compared to supersonic parachutes, IADs represent a decelerator option capable of operating at higher Mach numbers and dynamic pressures. IADs have seen a resurgence in interest from the Entry, Descent, and Landing (EDL) community in recent years. The NASA Space Technology Roadmap (STR) highlights EDL systems, as well as, Materials, Structures, Mechanical Systems, and Manufacturing (MSMM) as key Technology Areas for development in the future; recognizing deployable decelerators
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27

Buchta, Vladislav. "Rám přívěsu Variant pro přepravu kabelových cívek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229240.

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Thesis deals with the truck frame VARIANT 252. The main task is to analyze weighting states, setting the values for weigting states. Strength control of the frame by using the Finite Element Method (FEM). And each subsequent frame adjustments based on the results of FEM. Part of this thesis is also the drawing documentation provided a modified frame assembly and each modified components.
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Chen, Yousheng. "Model calibration methods for mechanical systems with local nonlinearities." Doctoral thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-57638.

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Most modern product development utilizes computational models. With increasing demands on reducing the product development lead-time, it becomes more important to improve the accuracy and efficiency of simulations. In addition, to improve product performance, a lot of products are designed to be lighter and more flexible, thus more prone to nonlinear behaviour. Linear finite element (FE) models, which still form the basis of numerical models used to represent mechanical structures, may not be able to predict structural behaviour with necessary accuracy when nonlinear effects are significant. N
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Zhao, Hai, and Gui Lin. "A Study of Couping Element Based Antenna Structure." Thesis, University of Gävle, Ämnesavdelningen för elektronik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-4423.

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<p>This thesis presents a study on built-in type low profile and low volume mobile phone antennas. In a coupling element based antenna, the chassis is the main radiator and the antenna elements are the exciters for the wave modes at low frequency. The main work of this thesis is to demonstrate and investigate the performance of the coupling element based antenna and study a variety of cases with different physical lengths and different physical heights. The investigation is done by using simulators. The performance is evaluated by analyzing the impedance bandwidth and the efficiency. For the s
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30

Assaad, Al Ayoubi Nazih. "Multi-scale modeling of fiber orientation in coupled fiber-reinforced viscous polymer systems." Electronic Thesis or Diss., Ecole centrale de Nantes, 2024. http://www.theses.fr/2024ECDN0008.

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Les thermoplastiques renforcés par des fibres courtes ont acquis une notoriété croissante en ingénierie, notamment dans les applications automobiles. La prédiction précise de l'orientation des fibres est cruciale car elle influence les caractéristiques mécaniques. Les travaux de recherche antérieurs dans ce domaine ont mis en exergue la complexité inhérente à l'orientation des fibres au sein d'un écoulement. La majorité des simulations industrielles s'appuient sur des modèles macroscopiques qui font usage de quantités préalablement moyennées et d'approximations de fermeture, engendrant fréquem
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31

Rukavina, Ivan. "Cyber-physics intrinsic modelling for smart systems." Thesis, Compiègne, 2021. http://bibliotheque.utc.fr/EXPLOITATION/doc/IFD/2021COMP2581.

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Dans le cadre de cette thèse, une approche de calcul de couplage multi-échelle et multi-physique en 2D et en 3D est présentée. La modélisation multi-échelle d’une structure consiste de l’échelle macro qui représente la réponse homogénéisée de la structure entière, tandis que l’échelle micro peut capturer les détails du comportement à la petite échelle du matériau, où des mécanismes inélastiques, tels que la plasticité ou l’endommagement, peuvent être pris en compte. L’intérieur de chaque macro-élément est rempli par le maillage à l’échelle micro qui s’y adapte entièrement. Les deux échelles so
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Madishetty, Suresh. "Design of Multi-Beam Hybrid Digital Beamforming Receivers." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1545178805415923.

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33

Xu, Yijun. "Uncertainty Quantification, State and Parameter Estimation in Power Systems Using Polynomial Chaos Based Methods." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/97876.

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It is a well-known fact that a power system contains many sources of uncertainties. These uncertainties coming from the loads, the renewables, the model and the measurement, etc, are influencing the steady state and dynamic response of the power system. Facing this problem, traditional methods, such as the Monte Carlo method and the Perturbation method, are either too time consuming or suffering from the strong nonlinearity in the system. To solve these, this Dissertation will mainly focus on developing the polynomial chaos based method to replace the traditional ones. Using it, the unce
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Feng, Libo. "Numerical investigation and application of fractional dynamical systems." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/126980/1/Libo_Feng_Thesis.pdf.

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This thesis mainly concerns the numerical investigation and application of fractional dynamical systems. Two main problems are considered: fractional dynamical models involving the Riesz fractional operator, such as the time-space fractional Bloch-Torrey equation, and complex viscoelastic non-Newtonian Maxwell and Oldroyd-B fluid models. The two main contributions of the research are the treatment of the Riesz space fractional derivative on irregular convex domains and presenting a unified numerical scheme to solve a class of novel multi-term time fractional non-Newtonian fluid models. A rigor
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Salah, Adham M. S. "Investigation of Integrated Decoupling Methods for MIMO Antenna Systems. Design, Modelling and Implementation of MIMO Antenna Systems for Different Spectrum Applications with High Port-to-Port Isolation Using Different Decoupling Techniques." Thesis, University of Bradford, 2019. http://hdl.handle.net/10454/18427.

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Multiple-Input-Multiple-Output (MIMO) antenna technology refers to an antenna with multiple radiators at both transmitter and receiver ends. It is designed to increase the data rate in wireless communication systems by achieving multiple channels occupying the same bandwidth in a multipath environment. The main drawback associated with this technology is the coupling between the radiating elements. A MIMO antenna system merely acts as an antenna array if the coupling between the radiating elements is high. For this reason, strong decoupling between the radiating elements should be
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36

Bella, Malika. "Développement d'une approche multi-échelle de modélisation de dispositifs thermoélectriques : application à des systèmes de capteurs sans fils autonomes sur le corps humain." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4755.

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Les dispositifs thermoélectriques, basés sur la conversion d'énergie thermique, offrent des perspectives intéressantes pour le développement de systèmes autonomes. Les principaux défis pour le développement de telles technologies reposent sur l'obtention de dispositifs flexibles, écologiquement et économiquement viables pouvant alimenter des appareils électroniques à faible consommation d'énergie. Le but de cette thèse a donc été de proposer une méthodologie pour l'analyse globale de dispositifs thermoélectriques pour des applications à température ambiante. Dans un premier temps, une approche
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Omar, Farah Samatar. "Modélisation multiphysique des roulements à billes par la Méthode des Éléments Discrets en régime Élasto-Hydro-Dynamique." Electronic Thesis or Diss., Amiens, 2022. http://www.theses.fr/2022AMIE0059.

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Le travail réalisé dans le cadre de cette thèse a contribué au développement d'un outil numérique dédié à la simulation des roulements à billes en conditions de service Elasto-Hydro-Dynamiques (EHD). Une modélisation originale, adaptée à ces organes de guidage en rotation, est donc mise en œuvre dans le cas des roulements à billes à contact radial SKF 6208 et à contact oblique SKF 7208. De par leur caractère multi-contact, les deux roulements sont modélisés par la Méthode des Eléments Discrets, avec une formulation hertzienne du contact elliptique pour déterminer les interactions billes/pistes
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Martins, Douglas Araujo. "Plateforme de conception d'actionneurs : méthodes et outils pour le pré-dimensionnement d'actionneurs." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT039/document.

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Les contacteurs et les relais sont utilisés dans de très nombreux dispositifs pour le contrôleet la commande à distance. La plupart sont équipés d’actionneurs électromagnétiques qu’il est nécessairede produire en quantité importante pour réaliser ces fonctions. Les exigences environnementalessur l’efficacité et la consommation énergétiques sont de plus en plus contraignantes. La conception deces actionneurs est donc un enjeu important. Cette thèse porte sur le développement d’une plateforme deconception dédiée au pré-dimensionnement d’actionneurs électromagnétiques. Cette plateforme reposesur
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Pelteku, Altin E. "Development of an electromagnetic glottal waveform sensor for applications in high acoustic noise environments." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-0114104-142855/.

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Thesis (M.S.)--Worcester Polytechnic Institute.<br>Keywords: basis functions; perfectly matched layers; PML; neck model; parallel plate resonator; finite element; circulator; glottal waveform; multi-transmission line; dielectric properties of human tissues; radiation currents; weighted residuals; non-acoustic sensor. Includes bibliographical references (p. 104-107).
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40

Adabi, Firouzjaee Jafar. "Remediation strategies of shaft and common mode voltages in adjustable speed drive systems." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/39293/1/Jafar_Adabi_Firouzjaeel_Thesis.pdf.

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AC motors are largely used in a wide range of modern systems, from household appliances to automated industry applications such as: ventilations systems, fans, pumps, conveyors and machine tool drives. Inverters are widely used in industrial and commercial applications due to the growing need for speed control in ASD systems. Fast switching transients and the common mode voltage, in interaction with parasitic capacitive couplings, may cause many unwanted problems in the ASD applications. These include shaft voltage and leakage currents. One of the inherent characteristics of Pulse Width Modu
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Pic, Axel. "Numerical and experimental investigations of self-heating phenomena in 3D Hybrid Bonding imaging technologies." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI054.

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Dans cette thèse, les phénomènes d’auto-échauffement ont été étudié pour guider la conception de circuits intégrés 3D de nouvelle génération. Grâce à des études expérimentales et numériques, la dissipation thermique dans des imageurs 3D par collage hybride a été analysée et l’impact de l’augmentation de température résultante a été évalué. Premièrement, afin de développer des modèles précis, les propriétés thermiques des matériaux utilisés dans les circuits intégrés ont dû être déterminées. Différents films minces diélectriques impliquant des oxydes, des nitrures et des composés low-k ont été
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Marioni, Luca. "Modélisation numerique et couplage électromagnétique-CFD dans les procédés decoulée." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEM011/document.

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Beaucoup de procédés utilisés dans l'industrie sidérurgique (coulée de lingots,coulée continue, …) peuvent générer des défauts : macro-ségrégation, mauvaises propriétés de la microstructure, défauts surfaciques. Ces problèmes peuvent être résolus par un contrôle de la température et de l’écoulement d'acier liquide. Le brassage électromagnétique (EMS) est une technique largement utilisée pour contrôler l’écoulement d'acier liquide par l’imposition d'un champ électromagnétique. Cette technique est complexe car elle couple plusieurs types de problèmes physiques:écoulement multiphasique, solidific
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Chen, Chun-Nan, and 陳俊男. "Multi-element laser alignment technologies and opto-mechanic system." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/16703781004904347411.

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碩士<br>中華大學<br>機械與航太工程研究所<br>95<br>This research is to investigate the laser, especially the multi-element laser, alignment technologies and the laser opto-mechanic system design. We use the SolidWorks software draw the laser components, sequentially align in the individual laser components with best alignment technologies. The complete laser configuration deploys 3D views and can be rotate at any line of eye sight. This alignment technologies and the actual laser configuration layout, can help the researchers to design any laser system with excellent simulation and demonstration of the alig
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Yeh, Li-Pin, and 葉立斌. "Finite Element Analysis of Multi-Layered Beam in Microelectromcchanical System." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/74270162762450428983.

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S, Bala Murugan. "Finite element analysis of multi-disk rotor-bearing system with transverse crack." Thesis, 2015. http://ethesis.nitrkl.ac.in/6647/1/THESIS-_BALA_MURUGAN_S_ROLL_NO._612ME310.pdf.

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The vibration analysis of rotating systems is pronounced as a key function in all the fields of engineering. The behavior of the rotor systems are mainly resulting from the excitations from its rotating elements. There are several numerical methods present to analyze the rotor-bearing systems. Finite element method is a key tool for dynamic analysis of rotor bearing system. The current study describes a multi disk, variable cross section rotor-bearing system with transverse crack on xisymmetric elements supported on bearings in a fixed frame. The shaft in the rotor-bearing system is assumed t
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Lee, Jeng-Nan, and 李政男. "Studies on the Multi-Axis Numerical Control Programming System Using Enveloping Element." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/51074810730695793441.

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博士<br>國立成功大學<br>機械工程學系<br>89<br>ABSTRACT In the multi-axis machining of the spatial surface, it is very important to determine the orientation of the cutting tool and the planning of the toolpath. The commercial CAD/CAM software is often lack of flexibility in obtaining the solutions and it relies on the intuition of the engineers. To take the advantages of multi-axis machine for manufacturing, a virtual enveloping element, which is a new concept for the constraint of geometry, is proposed. It is used to confine the range of inclination of tool and to avoid interference between th
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Chi-HaoWang and 王麒豪. "Study on Wireless Power Transfer System with Four-Coil Multi-Element Matrix Structure." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/2z755q.

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碩士<br>國立成功大學<br>電機工程學系<br>106<br>This thesis aims to study wireless power transfer system with four-coil multi-element matrix structure in order to enhance the efficiency on a certain size area. First, difference kinds of common coupling structure are discussed and simulated. Multi-element matrix structure are applied in four-coil wireless power transfer technology and transfer power more effectively by high quality factor. Furthermore, four-coil resonance coupled structure can improve the drawback of the general inductive coupled charging platform in the short distance of the wireless power t
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Lan, Shih-Cheng, and 藍仕成. "A Study of Vibration Suppression in a Gear-bearing System with Damping Particles Based on Multi-body Dynamics and Discrete Element Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/4sfa8z.

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碩士<br>國立中央大學<br>機械工程學系<br>106<br>To establish the multi-body dynamics (MBD) model of a gear transmission system for studying its dynamic characteristics is always an important issue in the engineering field. In recent years, the discrete element method (DEM) has been widely applied on solving problems that traditional continuum mechanics cannot solve, while the utilization of damping particles to reduce vibration in the mechanical system is one application of them. However, the related research of MBD-DEM coupling analysis is still rare so far. Therefore, this study established the dynamic cha
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Ogilvie, A. L. "Textural and LA-ICP-MS trace element chemistry analysis of pyrite and chalcopyrite from Telfer Au-Cu deposit, W.A.: implications for a multi-source ore system." Thesis, 2014. http://hdl.handle.net/2440/110492.

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This item is only available electronically.<br>The Telfer Au-Cu deposit, Paterson Province, W.A. is hosted within two doubly-plunging anticlines, the Main Dome and the West Dome. The deposit consists of vertically-stacked, stratabound Au-Cu mineralised horizons ('reefs') linked by associated stockwork, sheeted and discordant veins. The study targeted a better petrographic, mineralogical and geochemical understanding of pyrite and chalcopyrite in E-Reefs mineralization with the objective of placing additional constraints on ore genesis. Particular emphasis is placed on Type-4 pyrite as defined
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Dash, Anuj. "Solving The Unsolved In Multicomponent Diffusion: The Concept Of Constrained Diffusion Couple Methods." Thesis, 2023. https://etd.iisc.ac.in/handle/2005/6202.

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Quantitative diffusion analysis in multicomponent metallic systems has been a formidable task historically and despite decades of research, most of the diffusivity estimations were limited to interdiffusion and some intrinsic diffusion coefficients in binary systems and interdiffusion coefficients in a few ternary systems until recently. The experimental complications associated with the need to intersect (n-1) serpentine diffusion paths in the n dimensional space for determining the 〖(n-1)〗^2 interdiffusion coefficients lead to various approaches like average diffusivity, square root diffusiv
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